Step-by-step explanation:
- you just substitute (-2) into the x values of the above function
Answer: Polygon Q's area is 1/4 of Polygon P's area
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Explanation:
Imagine we had a square with side length 8. The area of this square is 8*8 = 64.
Now let's reduce each side of the square by the scale factor 1/2. So each new side is 8*(1/2) = 4. The area of this smaller square is 4*4 = 16.
Comparing the new area (16) to the old one (64), we see that the new area is 16/64 = 1/4 of the old area.
In other words,
new smaller area = (1/4)*(old larger area)
So this is one example to see why (1/2)*(1/2) = 1/4 is the area scale factor based on the linear scale factor of 1/2. In short, (1/2)^2 = 1/4. Whatever the original scale factor is, square it and you'll get the area scale factor.
<em>hope </em><em>it</em><em> helps</em>
Answer:
59°
Step-by-step explanation:
In triangle DAB, by Pythagoras theorem:
Next, in triangle DCB, by Pythagoras theorem:
Now, by sin rule.
Answer:
3/5
Step-by-step explanation:
the sin of an acute angle in a right triangle is the ratio of the opposite side to the hypotenuse
24/40=3/5
